232944-74-0Relevant articles and documents
Enatioselective Chalcogeno-Baylis-Hillman reaction of arylaldehydes with MVK and acrylates catalyzed by chiral thiepin-TiCl4 complex
Yin, Yan,Sun, Guofeng,Zhang, Heng,Zhou, Hong,Wu, Fanhong
, p. 365 - 369 (2014/05/20)
In a rational chiral molecular design of chalcogenides, optically active thiepin with C2-symmetric chirality was synthesized from commercially available thiophene. Then enatioselective Chalcogeno-Baylis-Hillman reactions of arylaldehydes with methyl vinyl ketone (MVK) and acrylates were investigated in the presence of thiepin-Lewis acid complex. Finally, up to 64% ee was achieved in the presence of 0.2 equiv. of (S)-thiepin at 20°C. Enatioselective Chalcogeno-Baylis-Hillman reactions between benzaldehydes and acrylates were investigated in the presence of chiral thiepin-Lewis acid complex. Finally, up to 64% ee was achieved in the presence of 0.2 equiv. of (S)-thiepin at 20°C. Copyright
FeCl3 and Yb(OTf)3 Mediated Conversion of Acetates of the Baylis-Hillman Adducts into (Z) and (E) Trisubstituted Alkenes
Krishna, Palakodety Radha,Kannan,Sharma
, p. 55 - 64 (2007/10/03)
Anhydrous FeCl3 and Yb(OTf)3 are utilised as new reagents for the stereoselective isomerisation of acetates of the Baylis-Hillman adducts to both (Z) and (E) trisubstituted alkenes respectively.
Amine and titanium (IV) chloride, boron (III) chloride or zirconium (IV) chloride-promoted Baylis-Hillman reactions
Shi, Min,Jiang, Jian-Kang,Cui, Shi-Cong
, p. 852 - 868 (2007/10/03)
The Baylis-Hillman reactions of various aryl aldehydes with methyl vinyl ketone at temperatures below -20°C using Lewis acids such as titanium (IV) chloride, boron (III) chloride or zirconium (IV) chloride in the presence of a catalytic amount of selected
